Machine for insulating electrical conductors.



PATENTED SEPT. 5, 1905.

0. H. HAWKINS.

MACHINE FOR INSULATING ELECTRICAL GONDUOTORS.

APPLICATION FILEDJOV 2b, 190%- WITNESSES A TTOHNEYS l l l l jrial No. 219,220. r

l i the United States, filed UNITEDSTHES PATENT ()FITCE.

M) NH ISLAND CITY, NEW YORK.

MACHINE FOR INSULATING ELECTRICAL CONDUCTORS.

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application filed November 28.19%. Serial No. 234.503.

To all whom it may concern.-

Be it known that I, CHARLES H. I-lmvurus,

a citizen of the United States, residing at Long Island City, in the county of Queens and State 5 of New York, have invented certain new and useful Improvementsin Machines for Insulating Electrical Conductors, of which the fol- I lowing is a specification, such as will enable those skilled in the art to which it appertains to 3 IO make and use the same.

t This invention relates to machines for insu- 1 lating wires used for electrical conductors, and particularly to that class of such machines known as the Roylef and the object thereof 5 is to improve a machine of this class so that the nsulating material will be forced there- 1 from in narrow strips, a further ob ectbeing to provide an improvement in a machine of the class referred to which will render it better adapted for use inconnection with the supplemental machine described and claimed by me in an application for Letters Patent of August 21, 1904., Se

The invention described and claimed herein 1 is fully disclosed in the following specificajftion, of which the accompanying drawings form a part, in which theseparate partsare designated bysu table reference characters i 3 in each of the views, and in which I Figure 1 is a sectional side elevation of the i head of a rubber-wire-coating machine of the :Royle type made according to my invention;

1 1 Fig.2, a transverse section on the line 2 2 of Fig. 1; Fig. 3, a similar view on the hue 3 3 of Fig. l, and Fig. 4: a section on the line 4 4. of Fig. 1. I r i In the practice of my invention, as shown in the drawings, I provide a cylindrical cas- AQ-ing (1, having an inclosing jacket 313415-6 fl l chamber (l'fs formed around the and at lire end of the casing u. is a casing d, also cylindrical in cross-section and between wlnch and the easing a is secured a plate 6, the sides of which the supplemental end casing (Z. 5 mental end casing d isalso provided with an are provided with openings 6 which form a communication between the interior chamber (6 of the casing a. and a conical chamber a" in l The suppleannular chamber (Z and with a large central V screw-threaded opening (6", closed by a screw- 15 threaded hollow plug (F, having a rim and in which is placed a plug (1, having a 55. central screw-threaded bore and opposite side ports or passages d, which are oblong atf', so as to form a continuation of the conical chamber a in the supplemental end casing (Z.

Within the casing (b is placed a longitudinal worm 7, having a central longitudinal bore through which is passed a tube 9, one end of which is screwed into the plug (2, and the worm is provided at the end thereof adjacent to the supplemental end casing d with a tubular journal g, which passes through the plate a, and the other end thereof is provided with a tubular journal g which passes through the corresponding end of the casing a, and a gear-wheel i1 is mounted on the tubular journal and one end of the tube also passes through the tubular journal 9''.

A tube 1' is connected with the jacket 5 ant communicates with the chamber 0, and another tube 2? is connected with the supplemental end casing (Z and communicates with the chamber (1* therein, and by means of this tube either hot water or steam may be supplied to the chambers c and (Hand said chambers are also preferably provided with drainpipes 7"" and vi.

One end of the casing a is provided with a hopper which also passes through the jacket 7/, and in practice the gum or other material employed for coating electric wires is fed, in a plastic or semiliquid condition or in any other condition, into the casing a,.*da'i't'tg h said hopper, and the wor y 9 is t r ed by means of the l mit-i /1 to which suitable gearing is p j fafi, or said worm may be turned in y 13 i red manner. In this operation the f -rial in the casing (t is forced in the directron of the supplemental end casing (Z and passes through the openings 6 in the plate 0 and forced into the conical chamber a and grad u ally fills said chamber, and the continued pressure applied by the worm forces the said material in the form of strips through the opening (Z in the supplemental plug (1, which forms a part of the head of the machine.

The wire l: to be coated is passed through the tube 7, and as it emerges from the plugs d and (.l" the coating or the narrow strips which form said coating are applied to the wire 7.? and compressed around the same in the usual or any desired manner. This operation in practice is preferably done by meansof my improved supplemental machine, described and claimed in the application for Letters Patent of the Unit i'l States herein be- Iore referred to, and it will be understood that thecasing (1-, the SUDplCmODiHl end casing (Z,

connected therewith, and all the interior and other parts within and connected with said casing and supplemental casing, as herein before described, constitute the head of what is knownas the Hoyle machine, hereinbefore referred to as improved by me.

i In the operation of this machine as herein before described thecasing (t and the contents thereof arewarmcd by steam or hot water admitted through the tube 1', and the casing (Z or theinterior thereof is also warmed by steam or hot water adi'nitted through the tube 2 and the contents of the chambers and (Z may be drained ofl whenever desired, and the parts of the machine may be cooled by passing coid water into and through the chambers c and (Z My invention is not limited to the exact de tails of the construction herein shown and described, and I reservethe right to make all suehalteration therein as fairly come within thescope of the invention.

Having fully described my invention, what I claim as new, and desireto secure by Letters Patent, is-jr 1. In amachinefor insulating electrical conductors, a cylindrical casing, a worm placed therein, and a supplemental easing at one end i of the cylindrical casing and provided with a conical chamber which communicates with theiinterior of the cylindrical casing and is provided at its apex with concentrically-arranged slots or openings, said worm being also provided with a stationary tube which is passed therethrough and through the apex of i thecasing ,ofthe conical chamber, substandrical asi d id d with a conical chamber in communication with the interior of said c),'lindrical casii'ig, said conical chamber being closed at its apex by a plughaving concentrically-arranged slots forming openings therein, said worm being also provided with a stationary tube which is passed therethrough and through the conical chamber and secured in said plug, substantially as shown and described.

3. In a machine of the class described, a cylindrical casing, a worm placed therein, a supplemental casing at one end of the cylindrical casi ng and provided with a conical chamber in communication with the interior of said cylindrical casing, said conical chamber being closed at its apex by a plug having concentrically-arranged slots forming openings therein, said worm being also provided with a stationary tube which is passed therethrough and through the conical chamber and secured in said plug, and both of said casings being provided with heating and cooling chambers and pipes communicating therewith, substantially as shown and described.

a. In a machine of the class described, a cylindrical casing provided with a jacket forming an inclosing chamber, a Worm placed in said casing, a supplemental casing at one end of the cylindrical casing and provided with a conical chamber which communicates with the interior of the cylindrical casing, said conical chamber being closed at its apex by a plug having concentrieally-arranged slots forming openings, and a tube passed longitudinally through said worm and secured in said plug, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of the subscribing witnesses, this 26th day of November, 1904:.

CHARLES H. HAWKINS.

\Vitnesses:

F. A. STmvA'n'r, O. E. MULREANY. 

